EP0074734B1 - Betätigung für Bremsen od. dergl. - Google Patents

Betätigung für Bremsen od. dergl. Download PDF

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Publication number
EP0074734B1
EP0074734B1 EP19820304448 EP82304448A EP0074734B1 EP 0074734 B1 EP0074734 B1 EP 0074734B1 EP 19820304448 EP19820304448 EP 19820304448 EP 82304448 A EP82304448 A EP 82304448A EP 0074734 B1 EP0074734 B1 EP 0074734B1
Authority
EP
European Patent Office
Prior art keywords
piston
actuator
pawl
brake
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19820304448
Other languages
English (en)
French (fr)
Other versions
EP0074734B2 (de
EP0074734A2 (de
EP0074734A3 (en
Inventor
Hugh Kenvyn Davies
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell UK Ltd
Original Assignee
Bendix Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10524411&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0074734(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bendix Ltd filed Critical Bendix Ltd
Publication of EP0074734A2 publication Critical patent/EP0074734A2/de
Publication of EP0074734A3 publication Critical patent/EP0074734A3/en
Application granted granted Critical
Publication of EP0074734B1 publication Critical patent/EP0074734B1/de
Publication of EP0074734B2 publication Critical patent/EP0074734B2/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/22—Brakes applied by springs or weights and released hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/08—Brake cylinders other than ultimate actuators
    • B60T17/083—Combination of service brake actuators with spring loaded brake actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/12—Fluid pressure for releasing a normally applied brake, the type of actuator being irrelevant or not provided for in groups F16D2121/04 - F16D2121/10
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2123/00—Multiple operation forces

Definitions

  • the first pressure responsive member may be arranged to contain the second pressure responsive member or alternatively the first and second pressure responsive members may be movable one relative to the other within a common cylinder.
  • a spring brake portion may be employed with a rod passing through the tubular member and which is of only relatively short stroke.
  • the pawl may be released from the ratchet to permit the push rod to be retracted, by striking a cylindrical extension 56 on the end 71, thus moving pawl 4 and bearing 59 axially against spring 72 until bearing 59 butts against bearing 60 at which point the pawl 4 will be clear of ratchet teeth.
  • the reaction force on the member 6 causes movement of that item in the release direction until the force applied through that push rod is released.
  • a further refinement applicable to a fluid pressure operable service and spring applied parking disc brake actuator is for the spring 72 to be of insufficient strength to re-engage the pawl, but merely of sufficient strength to enable bearing 59 to follow the pawl as it is pushed into engagement.
  • a fluid pressure cylinder may be used to move the pawl into engagement with the ratchet, the fluid being in connection with and at the same pressure as that compressing the brake application spring. This resists any attempt to disengage the pawl unless pressure was released from the spring compression chamber either deliberately or due to leakage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)

Claims (10)

1. Betätigung für Bremsen oder dergleichen mit einem Gehäuse (1) mit einem auf Druck ansprechenden ersten Kolben (7, 10, 11; 31, 47), der beim Ansprechen auf ein Arbeitsmitteldrucksignal an einer ersten Signaleingangsöffnung (2) betätigbar ist, um einen Vorwärtshub auszuführen und eine Ausgangskraft über einen Kraftausgangsteil (6, 34) an ein Bremselement (14) oder dergleichen anzulegen, einer automatischen Nachstelleinrichtung (4, 5), die in Relation zu dem ersten Kolben (7,31) für dessen Festlegen relativ zu dem Gehäuse (1) gegen mehr als einen vorbestimmten Rückkehrhub betätigbar ist, und mit einer mittels Federkraft angelegten und mittels Druck gelösten Parkbremseinrichtung oder dergleichen, die einen zweiten Kolben (12, 15; 36, 41) hat, der auf einen Arbeitsmittelsteuerdruck an einer zweiten Öffnung (18; 46) anspricht und über eine Kolbenstange (13, 48) zwischen dem ersten Kolben (7, 10, 11; 31, 47) und dem genannten Element (14) wirkt, um die Bremse oder dergleichen anzulegen, dadurch gekennzeichnet, daß der Ausgangsteil (6, 34) rohrförmig ist und die Kolbenstange (13; 48) durch den rohrförmigen Ausgangsteil (6, 34) bewegbar ist.
2. Betätigung nach Anspruch 1, dadurch gekennzeichnet, daß der erste Kolben (7, 10, 11; 31, 47) den zweiten Kolben (12, 36) mit sich trägt.
3. Betätigung nach Anspruch 2, dadurch gekennzeichnet, daß der erste Kolben (7, 10, 11; 31, 47) zwei Dichtungen (8, 20; 49, 50) aufweist, zwischen denen der Arbeitsmittelsteuerdruck an . der zweiten Öffnung (18; 46) des Gehäuses (1) mit einem Raum (16; 42) in Verbindung steht, um auf den zweiten Kolben (12, 36) zu wirken.
4. Betätigung nach Anspruch 3, dadurch gekennzeichnet, daß der zweite Kolben (12) in einer Zylinderbohrung abgedichtet verschiebbar ist, die in dem ersten Kolben (7, 10, 11) gebildet ist.
5. Betätigung nach Anspruch 2, dadurch gekennzeichnet, daß der zweite Kolben (36) mit seiner Dichtung (43) in der gleichen Bohrung (37) wie der erste Kolben (31, 47) zwischen den Dich- . tungen (49, 50) des ersten Kolbens abgedichtet verschiebbar und über eine Querverbindungseinrichtung (39) mit der Kolbenstange (48) verbunden ist.
6. Betätigung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Nachstelleinrichtung (4, 5) eine Klinke (4) und ein Gesperre (5) aufweist und die Klinke federnd angebracht ist, um massiven Eingriff unter Last mit einem Gehäuseteil (3) zu schaffen.
7. Betätigung nach Anspruch 6, dadurch gekennzeichnet, daß die Klinke (4) durch einen außen vorragenden Teil (121) von Hand lösbar ist.
8. Betätigung nach Anspruch 7, dadurch gekennzeichnet, daß die Klinke (4) einen zugeordneten auf Arbeitsmitteldruck ansprechenden Teil (133) hat, der betätigbar ist, um einer Freigabe von Hand entgegenzuwirken.
9. Betätigung nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Klinke (4) entlang ihrer Drehachse für Zwecke ihres Freigebens bewegbar ist.
10. Betätigung nach Anspruch 9, dadurch gekennzeichnet, daß die Klinke (4) angefast ist, um eine Einführung für Wiedereingriff mit den Gesperrezähnen (5) zu schaffen.
EP19820304448 1981-09-09 1982-08-24 Betätigung für Bremsen od. dergl. Expired EP0074734B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8127307 1981-09-09
GB8127307 1981-09-09

Publications (4)

Publication Number Publication Date
EP0074734A2 EP0074734A2 (de) 1983-03-23
EP0074734A3 EP0074734A3 (en) 1983-05-04
EP0074734B1 true EP0074734B1 (de) 1986-12-10
EP0074734B2 EP0074734B2 (de) 1992-06-17

Family

ID=10524411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820304448 Expired EP0074734B2 (de) 1981-09-09 1982-08-24 Betätigung für Bremsen od. dergl.

Country Status (2)

Country Link
EP (1) EP0074734B2 (de)
DE (1) DE3274673D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599101A1 (fr) * 1986-05-23 1987-11-27 Muller Alfred Freins de stationnement automatiques
FR2656906A1 (fr) * 1990-01-05 1991-07-12 Renault Vehicules Ind Frein multidisque a commande par fluide avec dispositif compensateur d'usure pour vehicules industriels.
DE4445960C1 (de) * 1994-12-22 1996-07-11 Grau Gmbh Bremszylinder für eine druckluftbetätigte Fahrzeugbremse
FR2808062B1 (fr) * 2000-04-19 2002-08-23 Sime Ind Frein a disque, en particulier pour usage industriel
EP4059792B1 (de) * 2021-03-15 2024-03-27 ZF CV Systems Europe BV Federbremsaktuator zur verwendung in einem fahrzeug und verwendung einer tellerfeder darin

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR779359A (fr) * 1933-12-27 1935-04-03 Freins Jourdain Monneret Dispositif de rattrapage de jeu pour freins hydrauliques
FR1197976A (fr) * 1957-03-05 1959-12-03 Magneti Marelli Spa Perfectionnements aux cylindres à double alimentation pour la commande d'installations de freinage pneumatique
GB839604A (en) * 1957-06-03 1960-06-29 Bendix Westinghouse Automotive Automatically adjusted fluid pressure actuator
US3158069A (en) * 1962-04-06 1964-11-24 Wagner Electric Corp Brake operating mechanism
FR1387663A (fr) * 1963-04-06 1965-01-29 Magneti Marelli Spa Dispositif à double effet, pour la commande de freins par un fluide sous pression
US3759147A (en) * 1971-02-24 1973-09-18 Certain Teed St Gobain Diaphragm brake actuator
US3677607A (en) * 1971-04-05 1972-07-18 Harold B Schultz Hydraulic power brake system
US3908804A (en) * 1974-07-11 1975-09-30 Caterpillar Tractor Co Service and parking brake actuation piston with adjuster mechanism
DE2508771C2 (de) * 1975-02-28 1982-11-25 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Selbsttätige Nachstellvorrichtung für Scheibenbremsen
DE2650490C2 (de) * 1976-11-04 1986-06-05 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pneumatisch oder hydraulisch gesteuerte Scheibenbremse
SE399393B (sv) * 1976-11-15 1978-02-13 Sab Ind Ab Bromsaktuator
DE2718765A1 (de) * 1977-04-27 1978-11-02 Knorr Bremse Gmbh Scheibenbremse fuer fahrzeuge, insbesondere strassenfahrzeuge

Also Published As

Publication number Publication date
EP0074734B2 (de) 1992-06-17
DE3274673D1 (en) 1987-01-22
EP0074734A2 (de) 1983-03-23
EP0074734A3 (en) 1983-05-04

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